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Discussion Starter · #1 ·
Out of mere curiosity I am wondering if a barrel conversion would be all that is required to convert a .30 Luger pistol to fire 9mm ammo and vice versa. As I understand it, the .30 Luger is a necked down 9mm as the .357 Sig is a necked down forty. Just musing. Thanks for any information. --c
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